68 30.9% Hard 253 47.5% Medium 843 46.0% Hard 394 53.4% Medium 721 52.9% Medium 315 42.3% Hard 85 40.0% Hard 149 18.1% Hard 329 46.8% Hard 695 66.6% Medium 359 73.0% Easy 489 73.4% Hard 715 41.4% Hard 1277 73.0% Medium 1293 43.2% Hard 354 38.1% Hard 593 43.3% Medium 729 53.9% Medium 853 44.7% Medium 57 35.7% Medium 1153 35.7% Hard 1146 36.9% Medium 1610 32.3% Hard 690 59.4% Easy 1499 45.4% Hard 1048 56.1% Medium 727 42.6% Hard 875 53.6% Medium 1631 50.2% Medium 299 45.0% Medium 418 33.9% Medium 1110 68.1% Medium 1509 54.9% Medium 792 48.6% Medium 652 53.6% Medium 1423 48.3% Medium 1706 61.8% Medium 947 55.8% Medium 833 51.7% Medium 562 46.7% Medium 1526 63.4% Hard 1406 58.6% Hard 951 65.9% Medium 1254 62.0% Medium 837 35.7% Medium 1776 48.9% Hard 1525 68.3% Medium 1548 55.4% Hard 732 63.2% Hard 900 56.2% Medium 
